How do you win the next open pylon? How about wedging as much juice as possible into an airframe and following the basic rules of pylon racing, “Go Fast, Turn Left” and making sure your bicycle clips are firmly fastened!

Below is a speed estimate taken from a recording of Brian McCartan’s Dara 20 at the field, as you can see, the figure comes out at 240km/h or in old money a hair under 150mph!!

What have you got??

Measuring the Doppler effect (change in sound frequency) during a low pass to give a speed reading